Filter.



No. 67|,003. Patented Apr.` 2, |901.

M. RUTHENBURG.

FI LT E B.

(Application 51nd Apr. 3, 1900.)

uio Model.;

...."unnnnnu" WITNESSES: INVENTOR:

* UNITED STATES PATENT EFICE.

MARCUSv RUTIIENBURG, OF `PHILADELPHIA, PENNSYLVANIA.

FILT'EB.

SPECIFICATION forming part of Letters Patent N o. 671,003, dated April 2, 1901.

Application filed April 3 1900.

.To caf/ZZ whom, it nza/y concern! l Be it known that I, MARCUS RUTHENBURG, of Philadelphia, in the State of Pennsylvania, have invented certain new and useful Improvements in Filters, whereof the following is a specification, reference being had. to the accompanying drawings.

My invention relates to filters of the class wherein a textile fabric is comprised as a liltering medium. l

It is the object of my invention to provide a filter wherein the textile fabric is so arranged with 'respect to the other elements of the apparatus as to be readily cleansed without removal from its embodiment and which is so secured with respect to the latter that it may be conveniently removed and renewed.

My invention consists of a filtering-tube of flexible textile material secured within a rigid tube which is permeable with respect to the filtrate and arranged to support the flexible textile tube in combination with means to separate the inner textile tube from the outer supporting-tube and means to normally maintain said inner and outer tubesin fixed relation, as hereinafter more definitely specified.

In the accompanying drawings, Figure l is a vertical sectional view showing a convenient embodiment of my invention. Figs. 2 and 3 are cross-sectional views through the single unitary filter members, showing modiiied means for maintaining 'the inner textile tube separate from the outer tube which supports it. Fig. 4 is a longitudinal sectional view through one of said unitary lter members, showing modified means for maintaining said tubes separate.

Referring to Fig. l, A is the inlet-pipe, connecting with the outer shell or casing B, which incloses the chamber C for the raw or unfilv tered liquid, and the chamber D for the ltrate. E is the outlet for theliltr'ate from said chamber D. Within saidcasing-B, I have shown` three tubular lter units, al-

though it is lto be understood that any'convenient number thereof may be employed. Said units each comprise an 'inner textile tube F, secured in fixed relation with an outer permeable supporting-tube G by any convenient means, such as the expanded collars H. Said units may be secured within the casing in any-convenient manner, so that one extrem- Serial No. 11,278. (No model.)

ity thereof is in communication with the rawliquid chamber C, and the other extremity thereof communicates with the exterior of the casing B and' is provided with suitable means, such as the valve I, to control the passage of liquid therethrough when it is desired to cleanse'the inner surface of the textile tube F by the free passage of liquid from end to endthereof. However, Iprefer to expand the upper ends of said tubes G within the head or diaphragm-b, as in a tubular boiler, with the lower extremities of said tubes G in threaded connection with the lower head b of the casing, the threaded extremities of said tubes Gextending exterior to said casing being in threaded engagement with the valves I, which normally close the lower ends of said tubes.

The operation of the device is as follows: The raw liquid entered by the inlet A is distributed in the chamber C to the filtering units and within the latter is filtered through the textile tubes F and supporting-tubes G, as indicated by the arrows upon Fig. 1, and the filtrate thus discharged within the chamber D is utlet therefrom at E. The matter suspended in the raw liquid, which is separated therefrom by the textile tubes'F, of

course lodges within the latter and from time to time it is necessary to remove such accumulated matter, and thus cleanse said tubes. The cleansing operation is effected by opening any one or all of the valves I and permitting the raw'liquid to rush through the respective tubes F, from end to end thereof, to thus `remove and discharge the impurities lodged therein.

When it is desired to renew the tubes F, the cap B' and valves I may be removed,

- thus giving access to both ends of the tubes G, and the collars H being removed the tubes F may be renewed and the collars H replaced.

I iind it is essential to the successful operation of the flexible textile tube'within the rigid su pporting-tu be that means be provided to separate the outer su rface of the textile tu be F` from the inner surface of the rigid supporting-tube G, for if said two surfaces are in intimate contact the filtering action is reduced to the minimum. The necessary separation of the tube F and the tube G may besecured in any convenient manner. However, in the IOO form shown in Fig. 2 the separating means consists of longitudinal ridges or ribs g, projecting from the in ner surface of the tube G in integral relation therewith. Referring to Fig. 3, the separating means consists of wires g', which may be singly disposed between the tube F and the tube G or be interwoven to form reticulated openings, as indicated at g in Fig. 1.l Referring to Fig. 4, g2 indicates ridges which extend spirally Within the tube G, between the latter and the tube F. Said ridges may be in integral relation with said tube G, as shown in said figure, or may be separate therefrom in the form of a wire.

In view of the stateof this art it is to be understood that I do not desire to broadly claim the use of textile material as a filtering medium; nor do I desire to claim the mere combination of a textile tube with a rigid supporting-tube. I believe it to be new, however, Ato provide a filter having the essential elements hereinbefore described, and therefore do not desire to limit myself to the precise arrangementor details of construction Vthereof which I have specified.

terior to said textile tube and arranged to' support the latter, and a ridge or ridges be tween said textile tube and said supportingtube, arranged to separate the same, substantially as set forth.

3. In a lter, the combination with a tube of textile material, of a permeable tube exterior to said textile tube and arranged to support the latter, and a spiral ridge or ridges between said textile tube andsaid supporting-tube arranged to separate the same, substantially as set forth.

4. In a filter, the combinationv with a tube of textile material, of a permeable tube exterior to said textile tube, and arranged to support the latter, means between said textile tube and said supporting-tube arranged to separate the same, and removable means arranged to maintain said tubes in normallyfixed relation, substantially as set forth.

5. In afilter, the combination with a casing B, of a chamber C, and a chamber D, within said casing, a tube G, communicating with said chamber C, and extending exterior to said casing B, and a valve I, to normally close the exterior end of said tube, substantially as set forth.

6J In a lter, the combination with a textile tube F, of asupporting-tube G, removable collars H, at the opposite extremities of said tube F, arranged to' maintain said tubes in normally-lixed relation, and means to direct the flow of wash liquid through said tube F, and through both of said collars H, to remove and discharge the impurities lodged therein, substantially7 as set forth.

MARCUS RUTHENBURG.

Witnesses: I

ARTHUR E. PAIGE, E. L. FULLERTON. 

